William maetin



2 Sheets-Sheet 1. W. MARTIN.

(Nie Model.)

SULKY PLOW.

No. 273,696. Patented Mar. 6, 1883.

(No Model.) 2 Sheets-Sheet 2. W. MARTIN.

sULKY PLOW. No. 273,696. Patented Mar.6,1883.

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UNITED STATES PATENT OFFICE.

WILLIAM MARTIN, OF HAVANA, NEW YORK, ASSIGNOR 'IO FRANK DIGKSON,

OF SAME PLACE.'

SULKY-PLOW.

SPECIFICATION forming part of Letters Patent No. 273,696, dated March 6, 1883.

Application filed August 29, 1882. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM MARTIN, a citizen ofthe United States of America, residing at Havana, in the county ot' Schuyler and 5 State ot' New York, have invented certain new and useful Improvements in Swivels for Sulky- Plows, of winch the following is a specitication, relerence being had therein to the acconr 'panyiiig drawings.

1o This invention relates to certain improvements in sulky-plows, and has for its object to enable the plow to readily tree itself without injury from obstructions, and to be leveled when required; and to these ends it consists 15 in the employment; of' a swivel-jointed connection and a sliding coupling, substantially as hereinafter more i'ully set forth and claimed.

In the accompanying drawings, Figure l is a plan view of' iiiyimprovemeiitiii sulky-plows.

2o Fig. 2 is a sectional view;and Fig. 3 is a front view, partly in section, ot' the saine.

In carrying out my invention I employ a bar, A, to which the plow-standard is clamped at a. by the means shown or otherwise. The

z5 inner end ofthe barA has an aperture or slot, a', providing it with short arms or prongs, which are caused to embrace a sleeve or collar, B, slipped on the crank-rod C of the sulky, and which Vare pivoted to a block or coupling,

3o b, as at b. The sleeve B has a pin or projection, c, entering a slot, c', of the bar A, opening into its larger slot a', and also a tongue, d, entering a groove, d', of the coupling b, whereby the bar is enabled to have longitudi- 35 nal and lateral play, to permit the plow to readily avoid or rather free itself from an obstruction without injury. The sleeve B is coupled to the crank-rod C by a collar, D, also slipped upon .the said rod, and having 4o a hooked flange, e, taking over a flange, c', on the sleeve. The collar D has a set-screw, f, to eiect the adjustment thereof, together with the sleeve and the beam connected thereto, permitting the horizontal adjustment ot the plow with its standard. E is a brace 4j or straining rod, connected to the beam A and to the crank-rod O by means ot' a coupling adapted to slide on the latter, and consisting of the sleeve F, having parallel aiiges g, (over a pin, secured to and between the same, 5 is hooked the brace or rod E,) and otl a collar, F', having a hooked flange, lL, taking over a tlange, h', on the sleeve, and a set-screw, i, bearing on the crank-rod C. This coupling, with the rod or brace E, permits the leveling 53 ot' the plow. As the sleeve F and collar F is moved outward on the crank-shaft U the bar Ais winged or inclined outward, and is secured at the desired angle by means of the set-screw z'. The rod will be strained or tightened and 6 draw upon and secure the plow-beam in said position, and thus effect the aforesaid result.

I claim and desire to secure by Letters Patent- 1. The combination of the axle G, sleeve B, 65 formed as described, collar D, having set-screw f, sleeve F, and collar F', havingr set-screw t', with guide-bar A, having adjustable clampplate a., brace-rod E, and plow-beam G, substantially as shown and specitied. 7c

2. The combination, with the axle C, ofthe sleeve B, having pin or projection c, enterii g a slot, c', in the guide-bar A, said guide-bar embracing the said sleeve B, and pivoted to a block, b, having a groove, d', which receives 75 a. tongue, d, on the sleeve, substantially as shown and specified.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM MARTIN.

Witnesses:

JAMES B. DRAKE, C. H. BRAKE. 

